There are more widows than widowers in the world for several reasons. Firstly, women tend to live longer than men on average, so they are more likely to outlive their spouses. Secondly, men are more likely to remarry after the death of a spouse than women, which can reduce the number of widowers. Thirdly, women are more likely to have caregiving responsibilities for their spouses, which can lead to increased stress and health problems, potentially increasing the likelihood of the wife outliving her husband. Finally, some cultural and social factors can also contribute to the higher number of widows, such as gender inequalities in healthcare and nutrition, and women's traditional roles as caregivers and homemakers, which can limit their opportunities for social and economic independence.